Voters began casting early ballots on Monday at locations across the state. They can also drop off mail-in ballots they received at home.

Politicians from both parties urge their supporters to vote early, before the polls close on the evening of Nov. 6. Their enthusiasm comes in part from the fact that early voters can then spend their time encouraging friends and neighbors to vote. V

ice President Joe Biden made the appeal in person last week in Greeley, and Republican presidential nominee Mitt Romney will do the same Tuesday at Red Rocks Amphitheater in Morrison.

Early voters can cast ballots until Nov. 2, which is the Friday before Election Day.